I didn't hear any problems with the VP180v4 at JBrad's place. I have the VP160v4 (I bought it in December per my review) and I like it.

I'd expect the M5HPOW to sound better than the M22OW.

The EP500v4 will be a killer for your room. SlimPikins has an EP500 in his 10,000 cu. ft. space (for music) and he loves it. Now he has the EP800v4 with the gut punch switch and he loves that too!

I am sure Ian can help you out. Especially if you buy the 500. Maybe he can make you one with the gut punch switch. smile